CN201341094Y - Power supply converter - Google Patents
Power supply converter Download PDFInfo
- Publication number
- CN201341094Y CN201341094Y CNU2009200033226U CN200920003322U CN201341094Y CN 201341094 Y CN201341094 Y CN 201341094Y CN U2009200033226 U CNU2009200033226 U CN U2009200033226U CN 200920003322 U CN200920003322 U CN 200920003322U CN 201341094 Y CN201341094 Y CN 201341094Y
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- CN
- China
- Prior art keywords
- power supply
- power
- trigger triode
- supply changeover
- changeover device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Power Conversion In General (AREA)
- Rectifiers (AREA)
Abstract
The utility model discloses a power supply converter with extra-low standby power consumption. The power supply converter of the utility model is used for converting an input alternating current power supply to an output direct current power supply. The power supply converter comprises an electromagnetic wave interference filter, a bidirectional alternating current trigger triode switch and a triode driver, wherein the electromagnetic wave interference filter is coupled to the input alternating current power supply to filter electromagnetic wave interference, the bidirectional alternating current trigger triode switch comprises a grid, a first channel end and a second channel end, wherein the first channel end is coupled to the electromagnetic wave interference filter to connect the input alternating current power supply, and the triode driver is used for driving the grid of the bidirectional alternating current trigger triode switch through switch signals of a loading device to control the electrical connection of the first channel end and the second channel end.
Description
Technical field
The utility model relates to the transducer of AC power DC power, particularly about a kind of power supply changeover device of tool utmost point low standby power loss, in order to provide utmost point low standby power loss under underload or unloaded situation, to meet the requirement of environmental protection, power saving.
Background technology
Present AC/DC power transducer in underload or unloaded situation decline low-power consumption, generally is in the AC power input switch element to be set, and relay for example is to provide the mechanism of cutting out AC power; Yet, in the AC power input extra switch element is set and has following shortcoming: 1. increase cost, 2. reduce conversion efficiency, 3. influence heat radiation.Above-mentioned all shortcomings can make the dealer bear higher cost of business operation and reduce the performance of power supply changeover device, therefore, need a kind of low cost badly, can not reduce conversion efficiency or influence the means of dispelling the heat, and realize the power supply changeover device of a tool utmost point low standby power loss.
At the shortcoming of existing AC/DC power transducer standby means, the utility model proposes a kind of solution that does not need to interrupt as switch elements such as relays power source conversion in the setting of AC power input.The utility model is designed to have a normal conversion pattern and an AC power blocking mode with power supply changeover device.This power supply changeover device can be enabled and work in this normal conversion pattern or worked in this AC power blocking mode by forbidden energy, to make power supply changeover device enter the holding state of low-power consumption by working in this AC power blocking mode under underload or unloaded situation.
The utility model content
A purpose of the present utility model provides a kind of power supply changeover device of tool utmost point low standby power loss, and it does not need in the AC power input relay to be set and can interrupt power source conversion and make power supply changeover device enter the holding state of low-power consumption.
Another purpose of the present utility model provides a kind of power supply changeover device of tool utmost point low standby power loss, its tool one two-way interchange trigger triode switch, the confession of may command AC power is defeated, work in this normal conversion pattern with this power supply changeover device of activation, or this power supply changeover device of forbidden energy and work in this AC power blocking mode and enter the holding state of low-power consumption.
In order to achieve the above object, the utility model proposes the power supply changeover device of a tool utmost point low standby power loss, in order to an input ac power is converted to an output DC source, it has: an Electromagnetic Interference stripper is coupled to this input ac power with the filtering Electromagnetic Interference; One two-way interchange trigger triode switch, it has a grid, a first passage end and a second channel end, and this first passage end is coupled to this Electromagnetic Interference stripper, in order to connect this input ac power; And a triode driver, in order to drive the grid of this two-way exchange trigger triode switch according to the switching signal of a load device, to control being electrically connected of this first passage end and second channel end.
A kind of power supply changeover device, tool utmost point low standby power loss, in order to an input ac power is converted to an output DC source, it has:
One Electromagnetic Interference stripper is coupled to this input ac power with the filtering Electromagnetic Interference;
One two-way interchange trigger triode switch, it has a grid, a first passage end and a second channel end, and this first passage end is coupled to this Electromagnetic Interference stripper, in order to connect this input ac power; And
One two-way interchange trigger triode driver is in order to drive the grid of this two-way exchange trigger triode switch according to the switching signal of a load device, to control being electrically connected of this first passage end and second channel end.
Described power supply changeover device, wherein, this two-way exchange trigger triode driver is the two-way exchange trigger triode driver that an optical coupling is isolated, it has a control side and a channel side, this control side is driven by the switching signal of this load device, when this control side had electric current to form, this channel side was conducting, causes the first passage end of this two-way exchange trigger triode switch and second channel end to be electrically connected; When this control side did not have electric current, this channel side was promptly closed, and caused the first passage end of this two-way exchange trigger triode switch and second channel end insulated from each other.
Described power supply changeover device wherein, further has a protective resistance, and this protective resistance places between this two-way exchange trigger triode switch and this two-way exchange trigger triode driver, in order to protect this two-way exchange trigger triode driver.
Described power supply changeover device, wherein, further has a resistance, one end of this resistance is coupled to the grid of this two-way exchange trigger triode switch, the other end of this resistance is coupled to from the group of this first passage end and second channel end and selects one, in order to promote the noise immunocompetence and the heat stability of this two-way exchange trigger triode switch.
Described power supply changeover device wherein, further has an input rectifying filter, is coupled to the second channel end of this two-way exchange trigger triode switch, in order to produce one first voltage.
Described power supply changeover device wherein, further has a main transformer and an output rectifier filter, and wherein this main transformer produces one second voltage according to this first voltage, and this output rectifier filter produces this output DC source according to this second voltage.
Described power supply changeover device wherein, further has a voltage feedback circuit, is coupled to this output rectifier filter so that a feedback voltage to be provided.
Described power supply changeover device wherein, further has one power factor correction/pulse width modulation controller, produces a power factor correction drive signal and produces a pulse width modulation signal according to this feedback voltage according to a power factor correction sensing signal.
Described power supply changeover device wherein, further has a power factor and promotes circuit, and it has a metal-oxide semiconductor (MOS), can operate and the bring to power factor according to this power factor correction drive signal.
Described power supply changeover device, wherein, this load device is a portable electronic devices.
The beneficial effects of the utility model are, the power supply changeover device of the tool utmost point low standby power loss that is provided, its tool one two-way interchange trigger triode switch, the confession of may command AC power is defeated, work in this normal conversion pattern with this power supply changeover device of activation, or this power supply changeover device of forbidden energy and work in this AC power blocking mode and enter the holding state of low-power consumption.
For further understanding structure of the present utility model, feature and purpose thereof, the attached now detailed description with graphic and preferred embodiment as after.
Description of drawings
Fig. 1 is a schematic diagram, and it illustrates the calcspar of the power supply changeover device of the utility model one preferred embodiment;
Fig. 2 is a schematic diagram, and it illustrates the circuit diagram of the power supply changeover device (not containing output rectifier filter and voltage feedback circuit) of the utility model one preferred embodiment.
Embodiment
Please refer to Fig. 1, it illustrates the calcspar of the power supply changeover device of the utility model one preferred embodiment; As shown in the figure, the power supply changeover device of tool utmost point low standby power loss of the present utility model can convert an input ac power to one output DC source, can work in a normal conversion pattern or an AC power blocking mode, it comprises an Electromagnetic Interference (EMI) stripper 101, one two-way interchange trigger triode (TRIAC) switch 102, one input rectifying filter 103, one power factor promotes circuit 104, one main transformer 105, one output rectifier filter 106, one voltage feedback circuit 107, one power factor correction (PFC)/pulse width modulation (PWM) controller 108 and a triode driver 109.
Wherein, this EMI stripper 101 places between this input ac power and this two-way exchange trigger triode (TRIAC) switch 102, in order to the issuable Electromagnetic Interference of filtering.
This two-way exchange trigger triode (TRIAC) switch 102 has a grid, a first passage end and a second channel end, and this first passage end is coupled to this Electromagnetic Interference stripper 101, in order to connect this input ac power; This second channel end is coupled to this input rectifying filter 103; And this grid is coupled to this triode driver 109; Wherein, this first passage end and second channel end can be electrically connected according to the control of 109 pairs of these grids of this triode driver or be insulated from each other.When this first passage end and second channel end were electrically connected, this power supply changeover device promptly worked in this normal conversion pattern; When this first passage end and second channel end were insulated from each other, this power supply changeover device promptly worked in this AC power blocking mode.
This input rectifying filter 103 is received this input ac power via the second channel termination of this two-way exchange trigger triode (TRIAC) switch 102, and it can implement rectification and filter action to this input ac power, thereby a ripple voltage is provided.
This power factor promotes circuit 104 and places between this input rectifying filter 103 and this main transformer 105, in order under the control of this power factor correction (PFC)/pulse width modulation (PWM) controller 108, this ripple voltage is changed into one first voltage with the bring to power factor.
This main transformer 105 can be exported one second voltage according to this first voltage.
This output rectifier filter 106 can produce this output DC source according to this second voltage.
This voltage feedback circuit 107 is coupled to this output rectifier filter 106 to provide a feedback voltage to this power factor correction (PFC)/pulse width modulation (PWM) controller 108.
This power factor correction (PFC)/pulse width modulation (PWM) controller 108 can produce a power factor correction drive signal according to a power factor correction sensing signal SPFC and promote circuit 104 to drive this power factor, and can produce a corresponding pulse width modulation signal SP according to this feedback voltage, control the power conversion of this main transformer 105, make this output rectifier filter 106 produce this output DC source.
This triode driver 109 has a control side and a channel side, and this control side is coupled to the switching signal S that a load device (not being shown among the figure) provides
On/
Off, this channel side then is coupled to the grid of this two-way exchange trigger triode (TRIAC) switch 102.As this switching signal S
On/
OffDuring for high potential, this channel side promptly produces a drive current causes the first passage end and the second channel end of this two-way exchange trigger triode (TRIAC) switch 102 to be electrically connected; As this switching signal S
On/
OffDuring for electronegative potential, this channel side is promptly closed and is caused the first passage end and the second channel end of this two-way exchange trigger triode (TRIAC) switch 102 insulated from each other.Wherein this load device can be portable electronic devices such as notebook computer, e-book.
Please refer to Fig. 2, it illustrates the circuit diagram of the power supply changeover device (not containing output rectifier filter and voltage feedback circuit) of the utility model one preferred embodiment; As shown in the figure, the power supply changeover device of tool utmost point low standby power loss of the present utility model can convert an input ac power to one output DC source, and it comprises that an EMI stripper 201, one two-way interchange trigger triode 202, an input rectifying filter 203, an EMI stripper 203a, a power factor promote circuit 204, a main transformer 205, one power factor correction/pulse width modulation controller 206, a resistance 207, a resistance 208, a resistance 209, an optical coupling triode driver 210, a resistance 211, a resistance 212 and a resistance 213.
Wherein, this electromagnetic interface filter 201 places between this input ac power and this two-way exchange trigger triode 202, in order to the issuable Electromagnetic Interference of filtering.
This two-way exchange trigger triode 202 has a grid, a first passage end and a second channel end, and this first passage end is coupled to this EMI stripper 201, in order to connect this input ac power; This second channel end is coupled to this input rectifying filter 203; And this grid is coupled to this optical coupling triode driver 210; Wherein, this first passage end and second channel end can be electrically connected according to the control of 210 pairs of these grids of this optical coupling triode driver or be insulated from each other.When this first passage end and second channel end were electrically connected, this power supply changeover device promptly worked in this normal conversion pattern; When this first passage end and second channel end were insulated from each other, this power supply changeover device promptly worked in this AC power blocking mode.
This input rectifying filter 203 is received this input ac power via the second channel termination of this two-way exchange trigger triode 202, and it can implement full-wave rectification and filter action to this input ac power, thereby a ripple voltage is provided.
This EMI stripper 203a places this input rectifying filter 203 and this power factor to promote between the circuit 204, in order to the issuable Electromagnetic Interference of filtering.
This power factor promotes circuit 204 and places between this input rectifying filter 203 and this main transformer 205, has a metal-oxide semiconductor (MOS) (MOS) transistor Q4, in order under the control of this power factor correction/pulse width modulation controller 206, this ripple voltage is changed into one first voltage with the bring to power factor.
This main transformer 205 can be exported one second voltage according to this first voltage, is converted to this output DC source via an output rectifier filter (not being shown among the figure) again.
This power factor correction/pulse width modulation controller 206, such as but not limited to TEA1751, can produce a power factor correction drive signal to drive the MOS transistor Q4 that this power factor promotes circuit 204, and can produce a corresponding pulse width modulation signal (not being shown among the figure) according to a feedback voltage, in order to this output DC source of output.
This resistance 207, resistance 208 and resistance 209 are formed a bleeder circuit, in order to a voltage division signal that this first voltage is provided to this power factor correction/pulse width modulation controller 206, make it adjust Control Parameter, with the bring to power factor in response to the voltage swing of this first voltage.
This optical coupling triode driver 210 has a control side and a channel side, and an end of this control side is to be coupled to the switching signal S that a load device (not being shown among the figure) provides through a resistance 211
On/
Off, the other end then is coupled to this switching signal S
On/
OffThe reference earthing potential; One end of this channel side is coupled to the grid of this two-way exchange trigger triode 202, and the other end then is coupled to this resistance 212.As this switching signal S
On/
OffDuring for high potential, this channel side promptly produces a drive current causes the first passage end of this two-way exchange trigger triode 202 and second channel end to be electrically connected; As this switching signal S
On/
OffDuring for electronegative potential, it is insulated from each other that this channel side is promptly closed the first passage end and the second channel end that cause this two-way exchange trigger triode 202.
This resistance 211 places this control side, flows through the electric current of this control side to protect this optical coupling triode driver 210 in order to restriction.
This resistance 212 places between the other end of the first passage end of this two-way exchange trigger triode 202 and these optical coupling triode driver 210 channel side, in order to protect this two-way exchange trigger triode driver.
One end of this resistance 213 is coupled to the grid of this two-way exchange trigger triode 202, and the other end then is coupled to this second channel end, in order to promote the noise immunocompetence and the heat stability of this two-way exchange trigger triode 202.
So, via enforcement of the present utility model, this two-way exchange trigger triode can or be closed by this optical coupling triode driver conducting, a power supply changeover device that can enter holding state can be provided; In addition, this optical coupling triode driver is with low cost and only consume minimum power, can not increase cost or influence conversion efficiency, really can improve the shortcoming of existing power supply transducer.
What the utility model disclosed is preferred embodiment, such as Ju Bu change or modification and come from technological thought of the present utility model and be have the knack of this skill the people was easy to know by inference, all do not take off patent right category of the present utility model.For example this rectification module also can be a half-wave rectifier; Can not possess this PFC loop; And this PFC/PWM controller can be made up of two IC.
Claims (10)
1. power supply changeover device, tool utmost point low standby power loss in order to an input ac power is converted to an output DC source, is characterized in that having:
One Electromagnetic Interference stripper is coupled to this input ac power with the filtering Electromagnetic Interference;
One two-way interchange trigger triode switch, it has a grid, a first passage end and a second channel end, and this first passage end is coupled to this Electromagnetic Interference stripper, in order to connect this input ac power; And
One two-way interchange trigger triode driver is in order to drive the grid of this two-way exchange trigger triode switch according to the switching signal of a load device, to control being electrically connected of this first passage end and second channel end.
2. power supply changeover device as claimed in claim 1, it is characterized in that, this two-way exchange trigger triode driver is the two-way exchange trigger triode driver that an optical coupling is isolated, it has a control side and a channel side, this control side is driven by the switching signal of this load device, when this control side had electric current to form, this channel side was conducting, causes the first passage end of this two-way exchange trigger triode switch and second channel end to be electrically connected; When this control side did not have electric current, this channel side was promptly closed, and caused the first passage end of this two-way exchange trigger triode switch and second channel end insulated from each other.
3. power supply changeover device as claimed in claim 2; it is characterized in that; further have a protective resistance, this protective resistance places between this two-way exchange trigger triode switch and this two-way exchange trigger triode driver, in order to protect this two-way exchange trigger triode driver.
4. power supply changeover device as claimed in claim 3, it is characterized in that, further has a resistance, one end of this resistance is coupled to the grid of this two-way exchange trigger triode switch, the other end of this resistance is coupled to from the group of this first passage end and second channel end and selects one, in order to promote the noise immunocompetence and the heat stability of this two-way exchange trigger triode switch.
5. power supply changeover device as claimed in claim 4 is characterized in that, further has an input rectifying filter, is coupled to the second channel end of this two-way exchange trigger triode switch, in order to produce one first voltage.
6. power supply changeover device as claimed in claim 5, it is characterized in that, further have a main transformer and an output rectifier filter, wherein this main transformer produces one second voltage according to this first voltage, and this output rectifier filter produces this output DC source according to this second voltage.
7. power supply changeover device as claimed in claim 6 is characterized in that, further has a voltage feedback circuit, is coupled to this output rectifier filter so that a feedback voltage to be provided.
8. power supply changeover device as claimed in claim 7, it is characterized in that, further have one power factor correction/pulse width modulation controller, produce a power factor correction drive signal and produce a pulse width modulation signal according to this feedback voltage according to a power factor correction sensing signal.
9. power supply changeover device as claimed in claim 8 is characterized in that, further has a power factor and promotes circuit, and it has a metal-oxide semiconductor (MOS), can operate and the bring to power factor according to this power factor correction drive signal.
10. power supply changeover device as claimed in claim 9 is characterized in that, this load device is a portable electronic devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200033226U CN201341094Y (en) | 2009-01-19 | 2009-01-19 | Power supply converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200033226U CN201341094Y (en) | 2009-01-19 | 2009-01-19 | Power supply converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201341094Y true CN201341094Y (en) | 2009-11-04 |
Family
ID=41236638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200033226U Expired - Fee Related CN201341094Y (en) | 2009-01-19 | 2009-01-19 | Power supply converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201341094Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102594095A (en) * | 2012-03-07 | 2012-07-18 | 陈焯燊 | Safe power supply adapter with automatic power off and zero standby power consumption functions |
-
2009
- 2009-01-19 CN CNU2009200033226U patent/CN201341094Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102594095A (en) * | 2012-03-07 | 2012-07-18 | 陈焯燊 | Safe power supply adapter with automatic power off and zero standby power consumption functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHICONY POWER TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: HIPRO ELECTRONICS CO.,LTD. Effective date: 20100505 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100505 Address after: Taiwan County, Taipei, China Patentee after: Chicony Power Technology Co., Ltd. Address before: Taiwan County, Taipei, China Patentee before: Gaoxiao Electronic Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091104 Termination date: 20150119 |
|
| EXPY | Termination of patent right or utility model |